Battery case with charging function



FIG. 1 is a perspective view of a battery case with charging function, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevational view thereof, the left side elevational view being a mirror image thereof; and,

FIG. 7 is a perspective view showing the bottom thereof. 

CLAIM An ornamental design for a battery case with charging function, as shown and described. 